Effect of preparation on hydroisodewaxing performance for diesel fuel of NiW/SAPO-11 catalysts

WEI Xiao-ming; LIU Yun-qi; ZHAO Liang; LIU Chen-guang

Volume 42 Issue 12

Dec. 2014

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WEI Xiao-ming, LIU Yun-qi, ZHAO Liang, LIU Chen-guang. Effect of preparation on hydroisodewaxing performance for diesel fuel of NiW/SAPO-11 catalysts[J]. Journal of Fuel Chemistry and Technology, 2014, 42(12): 1500-1505.

Citation:

WEI Xiao-ming, LIU Yun-qi, ZHAO Liang, LIU Chen-guang. Effect of preparation on hydroisodewaxing performance for diesel fuel of NiW/SAPO-11 catalysts[J]. Journal of Fuel Chemistry and Technology, 2014, 42(12): 1500-1505.

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Effect of preparation on hydroisodewaxing performance for diesel fuel of NiW/SAPO-11 catalysts

State Key Laboratory of Heavy Oil Processing, Key Laboratory of CNPC Catalysis, China University of Petroleum, Qingdao 266555, China

Received Date: 2014-08-07
Rev Recd Date: 2014-09-17
Publish Date: 2014-12-30

Abstract

Abstract

Catalysts for hydroisodewaxing were prepared by SAPO-11 zeolite instead of ZSM-5 zeolite with nickel and tungsten as metal components. The catalysts were characterized by using XRD, BET and Py-IR. Using Changqing straight-run diesel oil as raw material, we evaluated the hydroisoderwaxing performance of the NiW/SAPO-11 catalysts prepared by different methods. The catalytic performance evaluation was performed on a pressurized fixed-bed microreactor. The result shows that the NiW/SAPO-11 catalyst prepared by mixing-kneading Ni first and then impregnating W active component has better hydroisodewaxing performance. At the reaction conditions of 340 ℃, 4.0 MPa, LHSV 1.0 h^-1 and hydrogen to oil volume ratio of 500:1, the freezing point of the diesel oil was decreased from 0 ℃ to -28 ℃, and the diesel yield was as high as 96.0%.
- SAPO-11,
- isodewaxing,
- mixing-kneading,
- impregnation

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References(9)

References

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